V.S. Chernov - Ph.D. (Eng.), Associate Professor, Leading Research Scientist, JSC «Concern «VEGA» V.I. Merkulov - Dr.Sc. (Eng.), Professor, Deputy General Designer - Head of Department, JSC «Concern «VEGA». E-mail: from_fn@mail.ru B.V. Belik - Engineer, JSC «Concern «VEGA». E-mail: boris_belik@mail.ru